NGC 6916 is a bright emission nebula located in the constellation Cygnus. It is part of a larger star-forming region known as the Cygnus X complex, which contains many young, hot stars that illuminate the surrounding gas and dust. This nebula is approximately 5,000 light-years away from Earth and spans about 30 light-years across. NGC 6916 is notable for its intricate structure and vibrant colors, which are produced by the ionization of hydrogen gas. It is often studied by astronomers to understand the processes of star formation and the dynamics of interstellar matter.